JPH08324559A - Molded container made of synthetic resin with a spout with tube - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a synthetic resin molded container capable of easily and inexpensively sealing the injection port of a self-supporting synthetic resin molded container without using a cap or a stopper. [Structure] A synthetic resin molding container in which a flexible synthetic resin tube 4 is attached to a pouring port 2 of a self-supporting synthetic resin molding container 1. The pouring port is sealed by binding appropriate portions of the tube with rubber bands or strings, tightening with fasteners, flattening and heat-sealing, and further forming a knot with the tube itself. The flexible synthetic resin tube is preferably a polyethylene inflation tube having a thickness of 30 to 300 μm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-supporting synthetic resin molded container for containing a solid or a liquid.

[0002]

2. Description of the Related Art Conventionally, a synthetic resin container for storing solids or liquids is a bag-shaped container in which two synthetic resin films or synthetic resin sheets are superposed and their required sides are adhered,
Alternatively, a self-supporting three-dimensional container (molded container made of synthetic resin) molded by vacuum molding, blow molding or pressure molding is used. In order to fill the bag-shaped container with the contents, since the container is not self-supporting, the container is temporarily set in a self-supporting state by a device such as a frame and the filling operation is performed. Therefore, in the case of the bag-shaped container, the filling work is not inconvenient for use in a place where the filling equipment is prepared, such as in a factory, but is not suitable for the filling work outdoors. Therefore, when the filling work is performed outdoors, for example, in a storage container for vegetables, edible wild plants, mozuku, etc., a synthetic resin molded container is superior in workability to a bag-shaped container, and is also excellent in stackability, It is convenient and widely used.

[0003] It is demanded that the self-supporting synthetic resin molded container used for storing and transporting vegetables, edible wild plants, mozuku and the like can efficiently perform the filling work or the discharging work of these stored contents. To meet this demand, the injection port of the self-supporting synthetic resin molded container is enlarged, and a large circular injection port having a diameter of 50 to 150 mm may be provided. This inlet / outlet is a closure spout (a part having a flange portion for heat-sealing around the opening of a synthetic resin molded container and a screw thread portion or a concavo-convex portion to which a cap or the like can be attached; It is fused to the opening of the molding container to form a pouring port where a cap can be attached) and a lid member is attached, and it is sealed by this. There is a problem that it is difficult to perform a fitting operation to close the lid and the manufacturing cost of the lid member is high. If further sterilization is necessary, sterilizing the boil at 85 ° C or more causes thermal deformation of the closure part, which may cause leakage. It also has problems such as a cause.

[0004]

Conventionally, in a self-supporting synthetic resin molded container, the inlet / outlet is sealed with a cap or a stopper. However, the present invention has been made in view of the above circumstances. The flexible synthetic resin tube can be used for the injection port of a self-supporting synthetic resin molded container without using a cap or stopper, and it can be easily and inexpensively sealed, and its opening is easy. An object is to provide a synthetic resin molded container.

[0005]

DISCLOSURE OF THE INVENTION The present invention is a synthetic resin molding having a tube-made pouring port in which a flexible synthetic resin tube is attached to the pouring port of a self-supporting synthetic resin molding container. It is a container. According to the present invention, the injection port of a self-supporting synthetic resin molding container is sealed or opened using a flexible synthetic resin tube attached to the injection port. That is, the synthetic resin molded container of the present invention, an appropriate place of the flexible synthetic resin tube, tied with a rubber band or a string, tightened with a fastener, or flattened by heat fusion, Seals the spout by making a knot in the tube itself. Moreover, when opening this, it is performed by unwinding or cutting with a rubber band or a string, unfastening the fastener, or cutting the tube.

The present invention will be described in more detail. The self-supporting synthetic resin molding container in the present invention is a self-supporting synthetic resin molding container molded by a molding method such as vacuum molding, blow molding, or pressure molding. That is, it is a synthetic resin molded container that can be self-supporting when filling stored items and is easy to fill. The shape of this container is not particularly limited, and a conventionally used container is used. This container may be a foldable container or a synthetic resin molded container housed in an outer box such as a back-in box.

This synthetic resin molded container is provided with an opening (a pouring port) for filling and discharging a stored item. In order to efficiently perform the filling work and the discharging work, this pouring port should be large, for example, having a diameter of 50 to 150.
It is good to make it as large as about mm. For example, when filling and discharging salted vegetables such as cucumbers, salted edible plants such as warabi and spring, and seaweeds such as mozuku, the diameter may be 100 to 100 mm. It should be 150 mm or larger.

Molded containers made of synthetic resin include polyolefin resins such as polyethylene and polypropylene, and ethylene-based resin.
Molded from vinyl acetate copolymer, olefinic copolymer resin such as ethylene-vinyl alcohol copolymer, polyamide resin such as nylon 6, nylon 66 or copolymers thereof, and the like. The resin of (1) is used as a single layer or as a laminated body in which a plurality of layers are appropriately laminated in consideration of the required performance. This lamination is generally carried out by coextrusion. The wall thickness of the synthetic resin molded container is generally 0.2 to 0.6 mm, but is not particularly limited.

In the present invention, a flexible synthetic resin tube is attached to the opening (inlet / outlet port) of the self-supporting synthetic resin molded container. Here, the flexible synthetic resin tube means that the middle of the tube is bound with a rubber band or a string, tightened with a fastener, flattened and heat-sealed, and further, a knot is formed by the tube itself. A tube that has the property of being capable of making a fluid impermeable inside the tube. As the synthetic resin tube, a tube having a diameter equal to or larger than the opening (pouring port) of the self-supporting synthetic resin molded container is used. This tube is
It is attached to the opening of the synthetic resin molded container by fusion or an adhesive. At this time, the opening should be inside the tube.

The material of the tube is polyolefin such as polyethylene and polypropylene, polyethylene-nylon coextrudate, polyolefin-nylon coextrudate such as polypropylene-nylon coextrudate, polyethylene and ethylene-vinyl alcohol copolymer extrudate. Although not particularly limited, it is desirable that the resin on the adhesive surface of the tube be made of the same material as that of the container in order to improve the adhesiveness to the synthetic resin molded container. Also, from the viewpoint of flexibility mentioned above, especially polyethylene inflation tube or polyethylene and nylon coextrusion tube,
The thickness is preferably in the range of 30 to 300 μm. Tube length (length from opening of synthetic resin molded container)
Is tied with a rubber band or string, tightened with fasteners, flattened and heat-sealed, and if there is a sufficient margin to seal by knotting with the tube itself,
It is preferably 10 to 100 cm. The tube has a cylindrical shape, but may have a bellows shape.

When the synthetic resin molded container of the present invention is filled with an item to be stored, there is no need for a device for making the container itself self-sustaining as in the case of filling a bag-shaped container with an item to be stored.
The filling work can be performed at any place regardless of whether it is outdoors or in a factory, and the container of the present invention has an advantage that it can be loaded easily. Conventionally, molding of synthetic resin molded containers is performed by closing the opening of the pouring inlet with a cap or plug.
In the present invention, a flexible synthetic resin tube attached to this opening is used for sealing, that is, an appropriate portion of the tube is bound with a rubber band or a string, or tightened with a fastener,
Alternatively, it can be sealed very easily because it is flattened and heat-sealed, or the knot is formed by the tube itself. When the container of the present invention is used, the tube can be tied with a rubber band or a string, tightened with a fastener, or a knot can be formed by the tube itself to perform manual sealing, so that electricity is not conducted. Filling work and sealing work can be performed even in places. In the case of sealing by heat fusion, complete sealing can be easily assured.

Further, in the conventional self-supporting synthetic resin molded container using a closure spout and a cap for sealing,
When changing the diameter of the inlet / outlet, it was necessary to change the closure spout and the cap accordingly, and for this change, it was necessary to create a mold for manufacturing the closure spout and the cap. In the present invention, even if the diameter of the spout is changed, it is only necessary to change the diameter of the tube, so that the cost can be reduced. In addition, when the diameter of the pouring port becomes large, the cap may be difficult to fit, and the cap may be deformed due to heating during sterilization performed as necessary.However, a tube is used in the synthetic resin molding container of the present invention. Since it is then sealed, there is no such problem.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show one embodiment of the present invention.
FIG. 1 is a perspective view of a synthetic resin molding container of the present invention, and FIG. 2 is a view showing a part of a vertical cross section thereof. In FIGS. 1 and 2, reference numeral 1 denotes a synthetic resin molded container, which is a cubic container made of polyethylene with a thickness of 0.4 mm in this example. a is a seam of the container. Reference numeral 2 denotes a circular opening (inlet / outlet) of the container, the diameter of which is 120 mm. Reference numeral 3 is a recess formed around the opening. Further, 4 is a flexible synthetic resin tube, which is a polyethylene inflation tube with a thickness of 50 μm in this example, and its diameter is 120 mm. Reference numeral 5 denotes an end portion of the polyethylene tube 4, which is an adhesive portion with the synthetic resin molding container 1. 6 is the end 5 of the polyethylene tube 4 and the synthetic resin molding container 1
It is the adhesion part with. For this adhesion, the end 5 of the polyethylene tube 4 is rolled outward and applied to the opening 2 of the synthetic resin molding container 1, the end 5 is brought into contact with the peripheral portion of the opening 2, and this contact is made. This is done by heat-sealing the parts.

In FIGS. 1 and 2, the polyethylene tube is in an upright state, but in reality, this polyethylene tube is not self-supporting and is in a hung state. Then, the tube in the hanging state is used as the recess 3 of the synthetic resin molding container.
The tube allows the tube to be unobtrusive when storing or transporting the container.
Thus, in this example, the recess 3 is formed around the opening, but the recess 3 may or may not be provided.

In order to fill the synthetic resin molded container 1 with a substance, the polyethylene tube 4 is contracted in the lengthwise direction and expanded along the opening 2 of the synthetic resin molded container 1, and in this state, for example, Fill with salted vegetables, salted wild vegetables, mozuku, etc. After the filling is completed, the polyethylene tube 4 is stretched in the length direction and the appropriate portion is tied with a string 7. FIG. 3 is a perspective view showing this state. Thus, the injection port of the synthetic resin molded container 1 can be easily sealed. And
It can be easily opened by cutting the string 7 to return the tube to its original state, or by cutting the part of the tube below the part connected by the string.

[0016]

EFFECT OF THE INVENTION In the synthetic resin molding container of the present invention, the injection port is hermetically sealed by binding the flexible synthetic resin tube attached thereto with a rubber band or a string, tightening it with a fastener, or flattening it. It is extremely simple because it can be performed by heat-sealing by welding or by making a knot in the tube itself. Also, when opening it, cut rubber bands or strings,
It is extremely easy as it can be done by unwinding, unfastening or cutting the tube itself. Further, in the present invention, since the cap or stopper is not used to seal the inlet / outlet, the structure of the inlet / outlet is simple, and when changing the diameter of the inlet / outlet, it is not necessary to change the cap or stopper each time, so it is easy. It can be dealt with at low cost. Also,
INDUSTRIAL APPLICABILITY The present invention has an advantage that it can be applied to a synthetic resin molded container having a large opening / closing port diameter and can be easily sealed. , The efficiency of discharging work can be improved. Further, the cap may be deformed by heating during sterilization, which is performed as necessary, but since the synthetic resin molded container of the present invention is sealed by using a tube, there is no such a problem. Further, since the container according to the present invention is self-supporting, it can be filled in any place regardless of whether it is outdoors or in a factory.

[Brief description of drawings]

FIG. 1 is a perspective view of a synthetic resin molding container of the present invention.

FIG. 2 is a vertical sectional view of a pouring / injecting part of a synthetic resin molded container of the present invention.

FIG. 3 is a perspective view of the synthetic resin molding container of the present invention when sealed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Self-supporting synthetic resin molding container, 2 opening part, 3 recessed part, 4 synthetic resin tube, 5 tube end part, 6
Fusing part, 7 strings

Claims (4)

[Claims] 1. A synthetic resin molding container having a tube-made pouring port formed by mounting a flexible synthetic resin tube on the pouring port of a self-supporting synthetic resin molding container. 2. A flexible synthetic resin tube having a thickness of 30 to
A synthetic resin molded container having a pouring port with a tube according to claim 1, which is a 300-μm polyethylene inflation tube. 3. A flexible synthetic resin tube having a thickness of 30 to
The synthetic resin molded container having a pouring port with a tube according to claim 1, which is a 300 μm polyolefin-nylon composite laminate tube. 4. A synthetic resin molded container having a tube-made pouring port according to claim 1, 2 or 3, wherein the pouring port of the self-supporting synthetic resin container has a circular shape with a diameter of 50 to 150 mm.